Afictitious element q has two naturally occurring isotopes. the first isotope has an abundance of 10.00% and a mass of 39.06 amu and the second isotope of element q has an abundance of 90.00% and a mass of 42.14 amy. calculate the weighted atomic mass of element q to the nearest tenth. show work

Given, mass of isotope 1 = 39.06 amu

% abundance of isotope 1 = 10.00%

mass of isotope 2 =  42.14 amu

% abundance of isotope 2 = 90.00%

Average atomic mass

= [ (mass of isotope 1  x % abundance of isotope 1 ) + (mass of isotope 2 x % abundance of isotope 2 ) ]/ 100

= [(39.06 x 10) + (42.14 x 90)]/100

= (390.6 + 3792.6) / 100

= 4183.2/100

= 41.8 (to the nearest tenth)

Therefore, the weighted atomic mass of element Q is 41.8 amu.

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .